Water-based anti-slip abrasion-resistant coating and preparation and construction method thereof
An anti-wear, coating technology, applied in the direction of polyurea/polyurethane coatings, coatings, coagulation pavement paved on site, etc., to achieve the effect of large friction, reduce safety accidents, and meet the needs of environmental protection
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Embodiment 1
[0020] Embodiment 1 synthetic aqueous polyurethane emulsion
[0021] Synthetic water-based polyurethane emulsion, the raw materials used and the proportion (by weight and number) are: 0.1-0.2 parts of dibutyltin dilaurate, 10-15 parts of polypropylene glycol, poly-1,4-butylene adipate 5-8 parts, 1.3-2 parts of 2,2-dimethylolpropionic acid, 10-15 parts of isophorone diisocyanate, 0.5-0.85 parts of pentaerythritol, 6-8 parts of acetone, 1,4-butanediol 1.5-2 parts, 0.8-1.2 parts of triethylamine, 1-2 parts of γ-aminopropyltriethoxysilane, 55-60 parts of water (deionized water).
[0022] The synthesis steps are as follows:
[0023] ① 2,2-Dimethylolpropionic acid and pentaerythritol were dehydrated under reduced pressure at 80°C for 2 hours.
[0024] ② Dry polypropylene glycol, dibutyltin dilaurate and poly-1,4-butylene adipate under reduced pressure at 120°C for 2 hours, cool down to 85°C, and add 2,2-dimethylol propionic acid , pentaerythritol and isophorone diisocyanate react...
Embodiment 2
[0040] Embodiment 2 prepares water-based anti-skid anti-abrasion coating
[0041] Preparation of water-based anti-slip and anti-wear coating, raw materials and proportioning (ratio by weight): 90-95 parts of water-based polyurethane emulsion prepared in Example 1, 0.1-0.5 part of ammonia, 0-1 part of color paste, 10-95 parts of anti-skid filler 20 parts (obtained by mixing quartz sand, calcium carbonate, and barium sulfate at a weight ratio of 3-5:1:2-4), 0.5-0.8 parts of defoamer, 0.5-1.0 parts of dispersant, and 0.2-0 parts of thickener 0.6 parts, 1.0-2.0 parts of leveling agent, 6-15 parts of dipropylene glycol methyl ether.
[0042] The preparation steps are as follows:
[0043] 1) Add dispersant and part of defoamer to the water-based polyurethane emulsion prepared in Example 1 (when the total parts by weight of defoamer is 0.5-0.8 part, add 0.1-0.2 part of defoamer at this time), add ammonia, Adjust pH=7-8, stir at 400r / min for 20-30min;
[0044] 2) Increase the rotat...
Embodiment 3
[0058] The construction method of embodiment 3 water-based anti-skid and anti-abrasion coatings
[0059] The water-based anti-skid and anti-abrasion coating prepared by embodiment 2 is used for road construction, and operates according to the following steps:
[0060] ①Base surface treatment: Clean the asphalt concrete base surface to remove fallen leaves and dust on the surface.
[0061] ②Binder paving: Prepare the prepared water-based anti-skid and anti-wear coating according to 1.5-2.5Kg / m 2 The amount is divided into three parts evenly for paving or spraying. After the first part of paving is completed, spread wear-resistant gravel on its surface, and then spread the second part of paint after it is surface-dry. Three parts, when it is fully dried and the strength is formed, it can be opened to traffic.
[0062] ③ Aggregate recovery: After the thin layer of anti-skid layer material is solidified, sweep away the excess coarse stone on the surface.
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